Water-purifying device for steam-boilers.



PATENTED JULY'M, 1906. Y Y IW. P. WIEMANN. I WATER PURIPYING DEVICE PoR STEAM BOILB'RS.

APPLICATION FILED 00T.21, 1905..

JUNITED sTATEs PATENT oEEIoE.

WILLIAM P. WIEMANN, OF ALLEGHENY, PENNSYLVANIA. I WATER-PURIFYING DEVICE FOR STAM-BOILERS.

Specification of Letters Patent.

Patented 'Juiy 24, 1906.

To aZZ whom it may concern,.-

Beit known that I, WILLIAM P. WIEMANN, a resident ofAllegheny, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Water-Purifying Devices for Steam-Boilers,

&c. and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to an improvement in water-purifying devices for steam-boilers, and has for its object to provide such devices whereby the hot water in a series of boilers may be cleaned, urified, or filtered by a cheap, simple, and) eflicient arrangement and by a single filter and a single pump.

My invention consists, generally stated, in the novel arrangement, construction, and combination of parts, as hereinafter more specifically vset forth and described, and particularly ointed out in the claims.

To ena le others skilled in the art to which my invention appertains to construct and use my improved water-purifying devices for steam-boilers, I will describe the same more` fully, referring to the accompanying drawings, in which- Figure 1 is an end view of a battery of two steam-boilers, showing my invention applied thereto. Fig. 2 isa top plan view of one end of said boilers. Fig. 3 is an enlarged sectional view of the filter employed in connection therewith.

Like symbols of reference herein indicate like parts in each of the figures of the drawings.

As illustrated in the drawin s, A represents a battery of two horizontaIsteam-boilers 1, which are set side by side and incased by the walls Al in the usual manner. Leading exteriorly along the ends 1 of said boilers is the main pipe 2, which has branch pipes 2 2 exten g inwardly therefrom and communicating with each of said boilers under the water-level therein. A valve or cock 3 is located on each of the branch pi es 2 2 and the pipe 2 is closed at one end eyond the pipe 2 by means of the cap 2a, while the o posite end of the .same iscon nected to t e suction end of a pump 4, located adjacent to said boilers 1. The discharge end of the ump 4 has a pipe 5 connected thereto which leads to a three-way cock or valve 6, having a blow-o pi e 7, and

om said valve a pipe 5 leads into t e lower end of a filter B, located adjacent to the boileIS. 4.

The filter B is tion shown in or casing 8 and preferably of the constructop and bottom plates 8 on -the same, which are held -together by means of the bolts 8a. Within the casing 8 is a stationary perforated plate 9, which is l0 cated at the top of the same, and below said plate and above the pipe 5 is the perforated plate 10. The plates 9 and 10 are connected together by means of a bolt 12, which exe tends through the lower late 10 and has a spiral spring 12 interposed) around the same between vsaid plate 10 and a bafiie-plate 11 above the bottom plate 8". The perforated plate 10 is supported by and movable on the olt 12, and between this plate and the upper stationary perforated plate 9 a s ace 13 is formed for the reception of a ltering medium 14, composed of a packing of loose mineral wool which is adapted to \be compressed between said plates 9 and 10 by the spring 12.

Leading from the upper end of the filter B above the plate 9 and through the top plate 8 of said filter is the pipe 15, which connects with the blow-off pipes 15 of said boilers 1, and each of said pipes 15 has a valve or cock 16 thereon.

The use and operation of my improved water-purifying device for steam-boilers are as follows: When the hot-Water is to be purified in the boilers 1, it is pumped from the pump 4 into the lower part of the filter B, through the pipe 5, and under the baffle-plate 1 1. Thence it passes around the edge of said plate 11 and is distributed to the lower perforated plate 10. The water then passes through the perforations in said plate 10, through the mineral wool 14, and thence through the perforations in the plate 9, after which it passes through the pipe 15 and blow-off pipes 15 back to the boilers 1. The spring 12 will have the proper tension, so that when the water is thus pum ed through the filter B at the proper speed t e filtering medium 14 will have a proper density to filter the suspended matter from the water. The mineral wool 14 is compressible, and in case the speed of the water increases the rcssure of the water on the lower perforatedp plate 10 will act to raise the same to compress the mineral wool 14, and thus revent the suspended matter from passing tlirough the lter B through the increased pressure and velocity of the water. After the water has been thus running throilgh the filter B for some time an accu- Fig. 3 and composed of a shell IIC 5 will be opened thereby to the: sewer mulation of scaling matter in the sha e of slush or sediment Will rest against. the `ower perforated plate 10 and sometimes in places on said plate, which matter becomes too heavy to be held there by the movement of' the water, so that it drops down throu h. the perforations in such plate on top ofthe 'aflieplate 11, where it will accumulate until the same is blown out. d

'Ehe'cleanin'g or blowing out of the filter BV is--accomplished by throwing the handle 6 on the threebway cock 6 t'o theleft, which will shutoff the waterfrom; the pump 4- to the pipe-5', tliroughthe pipe`5,l sorthat thepipe throughfthe'b ow-ofi` pipe 7 which will allow the Water from the boilers 1 to flow back` through the-filter by the-pipes 15 an'd15 and' f carry offthe-matter. that; has accumulated in the minerali Wool 14: and on the baffle-plate 1.1. In: thisblowing back ofthe Water the mineral wool 14. becomes loosened as the lower perforated plate 1() moves down: against the tension of the spring 12 on. aocount of the pressure of water above the same, which will give the filter B a more thoroughi cleaning than would bepossible-if the filtering medium 1.4 was tofremain at the same density it was-aswhenworking as a'filter. In returning thevvalveto its normal'position by the movement of its handle 6 toitlle left thefilter Bfi's inzorder to-againoontinue its filtering operations, andl aA seriesof boilers can have its hot water'cleaned and purified bythe connections, asshow-n, and onlythejhot waterin: one boiler can be cleaned andv purified at a time by cutting out the same from theo'tlier boiler or' boilers throughy the valves 3 and 16, and afterits water-is cleaned and purified another boiler canbeput in and its Water'cleanedand:purified, so. that in' this way ai large'number ofi boilerscanr be cared for by onefilter. and one-pump.

It willlthus be seen that my improved device for purifying wateriny steam-boilers-issuch-that it canbe appliedand. used with an' constructionof steam'boiler andusedA at Willi andA itsv use will? enable suohi boiler While in o eration to be kept clean and the Water t ereinf purified.E at all'f times with` great` s eedf throughforc'ing the circulation by mee anical means, as by the-pump, While the-devices are of'such a'form and naturethat the can: be kept cleanfeasily andquickly and wi l not get out` of order.

Various modifications and changes in the design and operation of the various partsof sfieii boiler andE pumpr for extracting i the suspend- Inested to said! boiler, a pump connectedA to said boiler and filterfor rapidly circulating through said filter topui'ify'tliesame, pipes lpump orvi'oe versa toa lowfor the' urifying off said boiler-water and to-cleansai ffilter.

.pump and filter and to' a blow-ofi', and a Vclosing said-bloweeff pipe fromfsaid filter and i opening versato a -ter whereby tlrewater 'is A=.pu1ifiefd in any one my im roved devices for purifying water in i steam.- Oilers may be resorted to without departing from the spirit of the invention or 6o` sacrifici-.n vany of its advantages. i

What claim as my invention, and desire to secure by Letters Patentjisf 1. The combination of a boiler, a filter conneotedtosaid boiler, and a pump connected to said boiler and filter for rapidly circulating g the boiler-water from and to said boiler throughrsaid filter t'o purify hesa'ine. l,

2. rEhe eombinationv of aboiler, a' oirculating-pump, and? afilter eonneoted toV said 7o I edi impurities inl the Water ofi saidr boiler;

3; The combination of a: boiler,- apump, and ai. filter connected: to said.l boiler and umprf'or circulating the'water ata-highA veoeity through saidi filter to remove the suspended: impurities in the water ofsaidy boiler.

4.- The 'combinationof wboilerrafilter con- 8o the boilerewater from an to said*l boiler connecting saidl pump and filter and to a blow-ofi", and; a threeway valve oroock on saidpi-pes for'clo'singsaidblow-ofi? ipe from said ter' and openin 'pipe' to ter'from 5; The oombinatonof a1 boiler, a pump, a filter'conne'ctedto said boiler andpump for extracting" the suspendedl impurities in the water of said boiler, pipes connecting said three-way valve or cock on said pipes for pipe to filter from pump or vice low forthe'purifying ofisaid boiler- Water and to clean said filter.

6. T he combinationvwithf a series ofboilers,- ofl aciroulatingi-pump,.a'filter, and conroo nections between said boilers, pump and; filoftheboilers.`

7-. Thel eombination withY a1 series of boilers, of aoir'Gulatngump,a filter, andV a-se- 105 ries of valvecontrel 'edi pipe eomiectionsbetfweeni said boilers, pump andlilt'er: whereby the' Water 'is'pnrifiedrin'any onefo'flthe'boilers. In' testimony whereof I2, thesa'idWrLnIAM P. -WIEM21JNN7 have hereunto seti my hand:

WIILLIAM P. Witnesses:

J=. N. COOKE, R. AXTIHELM; 

